Add tests to check for interoperability with Golang and python

[kevaundray]

This is not yet possible with the Rust implementation as we use merlin for the Transcript protocol, while the python and golang implementation use a simple sha256 hash.

we can however, test for other components such as:

• The compressed point format is equal.
• given a scalar, the SRS is the same
• The tree root for an empty trie is the same
• The tree root, for a set of inputs is the same (This can be done by seeding a common PRNG)
• A KZG proof created in python can be verified in rust and golang and so forth, given the same SRS

[kevaundray]

This is half-way complete. The rust code now uses a regular transcript that matches with the other implementations, there are also tests that check CRS consistency, and trie root consistency.

Still need to ensure that a proof created using either implementation can be verified with the other implementations. This requires each implementation to use the same serialization